The reasons for people's success in trading, if you want to know trading in general,

What is Reversal Trading?
Financial markets move in trends, but those trends don’t last forever. At some point, an uptrend slows down, loses momentum, and begins to move in the opposite direction. Similarly, a downtrend eventually finds buyer interest and starts shifting upward. These turning points are known as market reversals, and traders who specialise in identifying them follow what is broadly referred to as a reversal trading strategy.